zimmerman



(No Model.) 3 Sheets-Sheet 1. J. ZIMMERMAN.

GAR HEATER 207257165565: 20. aJinZinSZaM.

WYZ W (No Model.) 3 Sheets-Sheet 2.

J. ZIMMERMAN.

UAR HEATER.

No. 406,120. I Patented July 2, 1889.

. Zlifinmsas:

Z0. 6? Jirdzinsion.

N. Pzmzs. mamum nu Wuhmgian, 11c,

(No Model.) 3 Sheets-Sheet 3;

' J. ZIMMERMAN.

GAR HBATBR.

No. 406,120. Patented July 2, 1889.

UNITED "(STATES- PATENT ()FFICEQ JOHN ZIMMERMAN, OF CINCINNATI, OHIO, ASSIGNOR TO THE ZIMMERMAN MACHINE COMPANY, OF SAME PLACE. v

CAR-HEATER.

SPECIFICATION forming part of Letters Patent No. 406,120, dated July 2, 1889.

Application filed August 13, 1888. Serial No. 282,536. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN ZIMMERMAN, a citizen ofthe United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented a certain new and use ful Improvement in Car-Heaters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciro fication.

My invention relates to an improvement in car-heaters of that class in which the heater or furnace is suspended below the surface of the floor, so as to occupy no space in the car itself.

It consists in the construction and arrangement of the Various parts to accomplish certain desired results, among them the proper management and direction of the currents of air, the proper adjustment and distribution of the heat, and the ready and easy management of the furnace, the details of which will be more fully hereinafter set forth.

In the accompanying drawings, Figure 1 is a perspective view, partly in section, of the interior of a car provided with my improved heater. Fig. 2 is a vertical section of the heater and the floor of the car. Fig. 3 is a perspective view of the flanged ring upon which the casing and fire-po'tirest. Fig. 4

is a perspective view of the casing inclosing the fire -pot. Fig. 5 is the fire-pot. Fig.

6 is a cross section through 00 :0, Fig. 2.

Fig. 7 is a broken section through the ring A, showing the relations of the parts. Fig.

8 is a plan View of the grate. Fig. 9 is a perspective view of a section of the basket-guard.

Fig. 10 is a plan view of the spacing-ring holding the wooden slats. Fig. 11 is a perspective View of the grating or registerface. Fig. 12 is a sectional view of a fire-pot casing and grating, taken on a plane similar to that on which Fig. 2 is taken, but on a larger scale. Fig. 13 is a bottom plan view 5 of the lower end of the fire-pot and its casing, (the fire-grate being omitted,) the scale being that of Fig. 12.

. I desire to place the heater beneath the body of the car, so that the fresh heated air 50 will pass directly intothe car, at the same time to so construct it that it is easily managed, the floor of the car protected from becoming superheated or burned and the clothing of passengers properly guarded. I r

Like letters of reference indicate identical parts in all the figures. I

I prefer to make my heater round, as illustrated in the drawings, a circular opening be-- ing made in the floor of the car to receive the flanged ring A, the horizontal flange a resting upon the floor and supporting the heater. The casing B is droppedthrough the ring A until the lugs 19 rest upon the lower flange a; of the ring A. These lugs 72 leavea space between the top of thecasing and the ring A, S06 5 that cold air can pass up from the outside of the casing into the car, and for an additional supply I provide holes or openings co in the flange a, thus providing an abundant supply of cold air at that particular point, which produces two desirable results. This constant current of cold air at this point cools the ring A, and prevents its becoming so hot as to burn the floor or the feet of passengers. It also supplies to the car a constant current of air, 75 which comes in contact with but a small portion of the heated surfaces of the furnace. It is only partially heated, and is not burned, producing a much better atmosphere within the car, and in passing the grating over the So heater absorbs suflicient heat'from it to keep the grating properly cooled. WVithout this outside current the gratingwould be liable to become too hot by reason of its proximity to the fire-pot. This grating is shown at Q, .85 Figs. 1 and 11, and in cross-section, Figs. 2 and '7. It is made to fit down over the heater in or upon the ring A, and is supported by legs g, which rest on the flange ct, thus holding the grating well up above the heater and leaving the space in the ring A between the legs free for the current of cold air, which not only strikes the sides of the ring, but mingles with the hot air and tempers the whole. EX- tending around the inside of the casing are a 9 5' series of lugs e, (not shown in the drawings,) near the bottom, to correspond with the lugs c c on the fire-pot C. The fire-potC, being dropped down into the casing 13, is supported by these lugs, and an open space or chamber is left all around the fire-pot and between it and the casing. This chamber is open at the top and bottom and supplies the hot air to the car. The air entering it at the bottom impinges against the sides of the fire-pot C, and by the time it passes out at the top and into the car has become hot, thus heating the atmosphere of the car. D is the door or opening in the top of the fire-pot for supplying fuel, a corresponding opening being provided in the grating.

F is a hollow neck in the top of the fire-pot for attaching the pipe G. The pipe G passes up through the car and out through the roof. An outside perforated pipe I'l embraces the pipe G. Between the two pipes is an air chamber or jacket, preventing too greata radiation of heat from the pipe, and for additional protection strips of wood I surround the outer pipe H, held in place by the bands K and recessed rings, Fig. 10. These strips of wood are supported on a metal basket J. This basket J is in the shape of a truncated cone, and consists of two rings, one smaller than the other and connected by ribs or slots L. The whole may be cast in one piece, or, if preferred, in two semicircular parts. The lower ring or bottom of basket fits within the center or inner opening of the grating Q, and is provided with exterior lugs or a shoulder resting upon the grating and supporting it. Within this basket are lugs j, resting against the outside of the perforated pipe H and holding it securely in place. The upper ring or top of the basket J is flanged to receive the ends of the strips I and support them. By this arrangement nearly the whole of the grating covering the furnace is left unobstructed for the more complete radiation of the heat and the lower end of the pipe completely protected.

In Fig. 10 is shown a recessed ring. The outer recesses receive the wooden strips or guards I. The interior lugs r 1 rest against the outside of the perforated pipe H and hold it in place, keeping the strips from becoming too hot, and at the same time leaving space for a current of air upward around the pipe 11. For protection against skirts and cloth ing, the lower part of the pipe G and the basket are provided with a guard R, Fig. 1,which consists of a wire fender, the upper part e11- circling or partly encircling the pipe, as at R, and the lower wider part encircling the sides of the grating. \Vhen the heater is located near the side of the car, as shown in Fig. 1, this fender only extends around the outer or exposed portion of the pipe and grating, and is used not only to protect skirts and clothing from coming too near the heater, but has another very important function in connection with a car-heater. In cold or snowy Weather many impurities are brought into the car on the feet, as snow caked with manure and the like. If the grating were not thus guarded, the dirty feet would be placed 011 it, and these impurities be melted off and fall upon the grat ing or through it onto the heater, where they would be dried, throwing off unpleasant and impure smells, befouling the atmosphere of the car, and rendering the heater a nuisance instead of a benefit.

Ian1 aware that wire fenders for open fireplaces are not new, and do not broadly claim a fender; but with my heater in a car it is, I think, a new combination for a new purpose.

Around the interior of the fire-pot, near the bottom, are lugs M. Upon these rests a grate N. This grate is slightly arched in form, sloping downward toward the sides from the center or near the center. On the lower side of the grate, at the center, are two lugs 13, to which is pivoted the arm or handle S, which is fulcrumed to lugs p on the outside of the casing B. The arm S is curved out to within easy reach under the car at the side, and by means of it the grate may be shaken to be cleared of cinders or ashes, and by pressing down on this handle the grate may be lifted or tipped to enter the fire-pot. By this arrangement of grate with the handle S the fire-pot may be instantly emptied in case of fire or accident. The curve of the handle S enables me to lift the grate up to a considerable height,

and the higher it is lifted the greater the space between it and the walls of the fire-pot. The hinge at 1) enables it also to be tipped to facilitate emptying the fire-pot. The fire-pot and easing being made in the shape of a truncated cone facilitate the arrangement of the air chambers and ducts, the emptying of the heater, its support and construction being also much cheaper, more compact, and durable.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a car-heater, the combination of a ring A, provided with flanges a and a, the former adapted to restupon the car-floor, and the latter provided with perforations a", casing B, with lugs e for supporting the fire-pot, and lugs Z), which rest upon the flanges a, the fire-pot O, resting in casing B, with an airspace between said fire-pot and casing, and a grating or register Q, provided with legs q, substantially as described.

2. In a car-heater, the combination of a fire-pot, a casing supporting the same, and a ring supporting the casing constructed to rest upon the car-floor and provided with openings intermediate of the casing and the carfloor, whereby the outside air may pass therethrough to cool the parts adjacent the floor, as set forth.

3. In a car-heater, the combination of a firepot, ring A, for supporting the said fire-pot, provided with flanges a and a, the former adapted to rest 011 the car-floor, and the latter provided with perforations a through which cold air outside the casing is admitted, and

as shown and described.

4t. In a car-heater, the combination of a ring A for supporting the casing of a fire-pot, provided with flanges a and a, the former adapted to rest on the car-floor, and the latter provided with perforations a, through which cold air outside the casing is admitted, and

the grating or register Q, having its outer edge made solid and fitting snugly in the ring, whereby cold air is directed inwardly to be mixed with heated air, substantially as de- I o scribed.

5. In a car-heater, the combination, with a 

